Answer: The proportion of new car buyers that trade in their old car has statistically significantly decreased.
Step-by-step explanation:
Since we have given that
p = 48% = 0.48
n = 115
x = 46
So, 
So, hypothesis would be

So, test value would be

At 10% level of significance, critical value would be
z= 1.28
Since 1.28 < 1.72
So, we will reject the null hypothesis.
Hence, the proportion of new car buyers that trade in their old car has statistically significantly decreased.
Answer:
Step-by-step explanation:
If p||q then, m∠1=m∠3
9x = 117
x = 117/9
x = 13
Step-by-step explanation:
If x=3, y=7 when x+y=z
z=3+7
z=10
Thirty-two thousand six hundred fifty-one